Horizontally-pivoted window.



No. 764,190. PATENTBD JULY 5, 1904 H. B. HITESHEW.

HORIZONTALLY PIVOTED WINDOW APPLICATION FILED APR. 7, 1904.

N0 MODEL.

WITNESSES fi aw 5 INVENTOR lcmw wuxwm,

ATTORNEY UNITED STATES Patented July 5, i904.

PATENT DEEICE.

HORIZONTALLY-PIVOTED WINDOW.

SPECIFICATION forming part of Letters PatentNo. 764,190, dated July 5, 1904.

Application filed lpril '7, 1901. Serial No. 201,947. (No model.)

To rtZZ whom, it may concern.-

Be it known that I, HARVEY B. HITEsHEw, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Horizontally-Pivoted Windows, of which the following is a specification.

The invention relates to windows having the sash horizontally pivoted to strips on each side, which strips are adapted to be separated laterally from the sash and to travel longitudinally in the grooves of the window-frame; and the object of the improvement is to provide a pivotal connection which will permit a free lateral movement of the strips with an expansible journal which can be tightened in the bearing to retard the rotation of the sash, by means of which the sash can be held in any position of rotation. This object is obtained by the construction, mechanism, and arrangement illustrated in the accompanying drawings, in which Figure 1 is a fragmentary side view of a window frame and sash, showing the pivotal connection in longitudinal section; Fig. 2, an enlarged cross-section of the frame and sash on line 2 2, Fig. 1; Fig. 3, an enlarged longitudinal section of the pivot parts in the strip, with the sash rotated to show a cross-section of the pivot parts therein; Fig. 4:, a detached perspective view of the sash-plate; Fig. 5, a detached perspective view of the strip-plate; Fig. 6, a detached perspective view of the pivot, with the key-pin and expansion-screw opposite their respective apertures; and Fig. 7 a detached perspective view of the spiral spring and washer in relative position for assembling.

Similar numerals refer to similar parts throughout the drawings.

The window-frame l is made in the usual manner with a groove 2 on each side for receiving the respective sash-strips. The sash 3 is made less in width than the inside clear width of the frame, and the usual strips 4 are pivoted on the side edges of the sash and are adapted to operate in the respective framegrooves. The adjoining faces of the sash edge and side strip are provided with the ridges '5 and 6, having inclined sides and arranged so that when the sash and strip are alined and brought together the ridges of the one will enter and fit in the grooves between the ridges of the other, as shown particularly in Fig. 2,

and when the sash is rotated on the strips the ridges are forced out of the grooves and bear against the crests of the opposing ridges, thus separating the strips from the sash, according to the depth of the ridges, as shown in Fig. 3. To meet these conditions, the pivotal connection must provide for the lateralv movement of the strips, as well as for the rotation of the sash. Each pivotal connection is composed of the sash-plate 7, the strip-plate 8, the pivot 9, the key-pin 10, the expansion-screw 11, the spiral spring 12, and the washer 13 and is preferably located in the transverse axis of the sash. The sash-plate 7 is countersunk in the side edge of the sash, where it is attached, as by the screws 14. The face of the sashplate is ridged, like the edge of the sash, and in the plate is provided the axial aperture 15, the

inner part 16 of which has an annular cross-section. The strip-plate 8 is countersunk, preferably, in the frame side of the strip, and when so located is provided with the hub 17, which extends through to the sash side of the strip, and in this hub is formed the journal-bearing 18 for the pivot. be entered through the journal-bearing in the strip-plate, in which it is adapted to rotate, and also through the axial aperture in the sash-plate, and its inner end 19 is formed angular in cross-section, like the inner end of the axial aperture, in which it is adapted to operate endwise, but not to rotate. The rimfiange 20 is formed on the outer end of the pivot, which flange is adapted to abut against the outer end of the journal-bearing, and when the pin is in position the spiral spring 12 and the washer 13 are respectively placed around the inner end of the pivot against the inner side of the sash-plate, where they are held by the key-pin 10, which is inserted in the transverse aperture 21 near the inner end of the pivot. The parts are so proportioned that the spiral spring is compressed between the sash-plate and the washer and key-pin, by means of which the strip and sash are pressed together between the rim-flange on one end The pivot 9 is adapted to and the spiral spring on the other end of the pivot, and the strip is adapted to be separated from the sash by an endwise movement of the pivot in the axial aperture of the sash-plate and by a further compression of the spiral spring, which separation is necessary when the sash is rotated on the strips.

1n the journal end 22 of the pivot is provided the longitudinal slit 23 and the axialthreaded aperture 2.4, in which aperture the screw 11 is adapted to be entered. Either one or both ends of the screw-aperture are tapered, as at 25 and 26, and the head 27 and the end 28 of the screw are correspondingly tapered, so that by an adjustment of the screw the pivot-journal is adapted to be expanded in its bearing and by the friction so caused to retard its rotation therein. By this means the sash is held in any given position of rotation as against any force less than that necessary to overcome this friction.

WVhat I claim as my invention, and desire to secure by Letters Patent, is

1. A window-sash and a separable strip on its side edge, there being corresponding grooves and ridges on the adjoining faces, and a pivotal connection between the sash and the strip comprising a pivot having an endwisemovable non-rotatable bearing in the one and a journal-bearing in the other, a spring acting to press the sash and the strip together, and means for expanding the pivot in the journal-bearing.

2. A pivotal connection for a window-sash and a separable strip comprisinga pivot having an endwise-movable non-rotatable bearing in the one and a journal-bearing in the other, a spring acting to press the sash and the strip together, and means for expanding the pivot in the journal-bearing.

3. In a pivotal connection for a windowsash and a separable strip, a pivot having an endwise-movable non-rotatable bearing in the one and a journal-bearing in the other, and means for expanding the pivot in the journalbearing.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HARVEY B. HITESHEVV.

Witnesses JonN FINK, J W. FINK. 

